Internal-combustion engine



Dec 4--- y 1,519,155.

A. MOORHOUSE I INTERNAL COMBUSTION ENGINE Filed July 1; 1922 U 2-Sheets-Sheet 1' -A. MOORHOUSE INTERNAL COMBUSTION ENGINE Filed July 1,1922 2 Sheets-Shea 2 v 4 7 wwwfi w ALFRED moonnousn, or nn'rnorr,mcme'niv', nssrenon '10. rncmzo To all whom it may concern:

vide a water pump for forcing cooling Patented Dec. l6, 1924; I

1,519,155 UNITED STATES PATENT. OFFICE.

MOT-OB CAR COMPANY 0F DETROIT, SMICHIGAN, A CORPORATIONOF MICHIGAN.

m'rmnn-oonnusrroiv ENGINE.

Be it known that I, Annual) Moonnousn,

v a citizen of the United States, and resident.

of Detroit, Wayne County, State of Mich.- igan,'have invented certainnew and useful Improvements in Internal-Combustion Engines, of which thefollowing is a specification.

This invention relates to internal combustion engines and particularlyto the water cooling system thereof.

One of the objects of the present invention is the elimination ofoutside piping as .much as possible and the consequent simplification oftheconstruction.

Another object of the invention is to prowater through the enginejackets with a thermostat at the outlet of the jacket and a ,shortinside by-pass from the thermostat tothe intake side of the pump, sothat the pump will-be low enoughto be primed at all times and yet closeenough to the ther- -mostat to permit a short pipeconnection therefromto the pump. Another object is to provide a combination side cover anddistributing conduit for the cylinder water jacket, thus simplifying andimproving the construction. Other objects of the invention will appearfrom the following description taken in connection with the drawings,which form a part of this specification, and in which:

Fig. 1 is a side elevation of an engine and radiator embodying theinvention;

Fig. 2 is an enlarged section of one end of the cylinder block shown inFig. 1;

Fig. 3 is a horizontal section substantiall on the line 33 ofFig. '2',extending the fu 1 -length of the block; s

Fig. 4 is a fra entary. vertical section on the line 4-4 0 Fig. 3; and

Fig. 5 is atransv'erse vertical section on the line 55 of Fig. 2.

Referring to the drawings 10 represents generally an internal combustionengine preferably of the motor-vehicle type and 11 r is a radiator shownas mounted at the front end of the engine. A fan 12 is mounted just backof the radiator for the purpose of increasing the circulationof airthrough the Application filed July 1,

1 922. Serial no. s'zaise.

the engine. The cylinder block is water jacketed around its sides and ontop as shown particularly in the various" detailed views. This cylinderwater jacket is indicated generally by the numeral 16; It is open at oneside as shown at17 and a cover 18 is secured over the opening as by aseries of screws-19.

, This cover will be hereinafter more particularly described.

The cylinder block is preferably divided horizontally along the line 20shown in. the various figures so that there is the cylinder block properand a cylinder head. The cylinder head is hereinafter'designated as 21and the water jacket 16 extends into it as shown particularly in Fig. 2,the jacket'of the cylinder block proper and the separable cylinder headbeing connected by various vertiv cal openings such as' 22 shown in Fig.2. Thus the water that is fed to the lower part of the cylinder jacketwill flow through the openings 22 into the jacket of the cylinder head.The detachable head issecured in 4 place-by a series of bolts 2'1 At oneend of the cylinder block'the castmg is formed with a compartment 23with a large opening 24 therein, see Figs. 2 and 3. A pump unit 25 isadapted to be-inimpeller 28 on a shaft 29, the casing having openings 30at its inner side .so that the water may be drawn in by the impeller andforced radially outwa'rdl into Z the com partment 23 above described. Abracket 31 extends from the pump casingoutwardly to form. a bearing 32'forthe extended end of the shaft 29 and the fan 12-above.de scribed ismountedon the end of said shaft.

A belt 33 may beconnected to any suitable rotating part of the enginefor drivingthe fan and pump. j

There is a connection from the lower part of the radiator 11 to theintake side of the pump and this is shown as a pipe 34 which connectswith a conduit or passage 35- leading to the openings 30 to the pumpimpeller. Thus the operation of the pump will draw the water from thelower part of the radiator and force it into the compartment or chamber23 hereinabove described.

The compartment 23 has an' opening or I port 36 leading outwardly at theside of the cylinder block at the front end-thereof ad-.

jacent the side opening 17 and the cover 18 above referred to extendsover this port as shown particularly in Fig. 3. In Fig. 2 the however,to prevent the, flow of cooling water being directed wholly against theI front cylinder the cover 18 is made in the .form of a distributingconduit.

It comprises an outside imperforate plate 37 and an inside plate 38separated from it, thus forming an elongated conduit. The inner plate 38is arranged to leave an opening 39 opposite the ,port 36' and it isprovided with a series of ports or openings 40 along its lower part sothat'the water will be some what evenly distributed to the various partsof the cylinder jacket.

The jacketed part of the cylinder head 21 overhangs the front end of thecylinder block immediately above thepump compartment and a thermostat 41is mounted in, this overhanging part of the cylinder head jacket and isarranged to contrtil a double valve v 42-43. These valves control theoutlet from the jacket. The valve 42 controls a port 44 and the valve 43controls a port 45, bothof which ports lead from the water jacket. Apassage 46 from the port 44 leads to anins1de pipe or conduit 47 whichpasses downwardly throughthe water jacket 16 to the Intake side of thepump and from thence through the pump and the port 36 and coverconduit18 to the lower part of the cylinder water jacket. I with a pipe ,48which leads to the upper part of the radiator 11 as shown in Fig. 1.

The action of the thermostat is as follows: When the engine is cold thethermostat 41 1s 1n its contracted state as shown in Fig. 2 and the'port44 is open and the port '45 is closed. The water is circulated throughthe pump and the water jacket and upwardly through the port 44.; thenceit will pass.

through the'passage 46 and the by-pass 47 back to the intake side of thepump and through the compartment- 23 and port 36 to the cylinder waterjacket, where the circula- 'tion continues. As soon as the water heatsup by the. operation of the engine the thermostat expandsand closestheport 44 and slmultaneously opens the port 45. This closes the by-passto the pump and the water passes upwardly through the passage 48 to thetop of the radiator 11. It'then passes downwardly through the radiatorand is cooled and then is drawn up through the 34 and the passage 35 tothe pump p1 e "which forces it into the compartment 23 through the port36 and opening 39 into the The port 45communicates then to the forwardpart of that jacket.

around the thermostat where the-circulation continues as beforedescribed. 1 v

While I have herein described in some detail a specific embodiment of myinvention, which I deem to .be new and advan tageous and mayspecifically claim, I do not desire it to be understood that myinvention islimited to the exact details of the construction, as it willbe apparent that changes may be made therein without departing from-thespirit or scope of my invention.

Having thus described my invention, what I claim and desire Patent is 1.In an engine, the combination of a to secure by Letters cylinder havinga' water jacket and an outlet therefor, athermostat controlling saidoutlet, and a by-pass pipe from the thermostat back to the cylinderjacket'extending inside the cylinder jacket.

2.111 an. engine, the combination of a cylinder having awater jacket andan outlet therefor, a thermostat controlling said out? let, a pump forcirculating water through the cylinder jacket to the thermostat, aradiator connected to the outlet and pump respectively, and a by-passinside said jacket from the thermostat to the pump.

3: In an engine, the combinationv of a cylinder, a separable headmounted thereon, a pump'adapted to supply cooling water to the'jacketsof said cylinder and head, a thermostat mounted in the head' forcontrolling the water outlet therefrom, and .a

by-Pass from the thermostat through the head jacket to the pump.

4. In an engine, the combination. of a cylinder, a separable head.mounted thereon, a pump mounted on the cylinder for supplying coolingwater to the cylinder andhead jackets, a thermostat mounted in the headfor controlling the passage of water from the head jacket, and a by-passcontrolled by said thermostat and extending therefrom through the headjacket to the p P- s- 5. In an engine, the combination of a waterjacketed cylinder, a pump mounted to supply cooling water to thecylinder jacket, a thermostat mounted in the cylinder jacket adjacentsaidpump, and a conduit leading from the thermostat through the jacketto thepump.

6. In an water jacketed cylinder, a pumpmount'ed to supply coolingwaterto the cylinder jacket, a thermostat mounted in the cylinder jacketimmediately above the pump, and a pipe engine, the combination of ajacket to the pump.

leading vfrom the thermostat through the 7. In an engine, thecombination of a water jacketed cylinder block, a pump mounted on theend' of said block, a portion of the jacketof said cylinder overhangingsaid pump, a thermostat positioned iii the jacket over said pump, a pipeleading from the thermostat to the pump and a valve on said thermostatcontrolling said pipe.

8. In an engine, the combination of a a cylinder block having a sideopening in its v a pump mounted'at-one end of the cylinder .40

ment to the water jacket.

water jacket, and a cover for said opening forming a conduit with aseries of openings to the water jacket- 9. In an engine, the combinationof a cylinder. block having a side opening inits water jacket, and acover for said opening formed of inner and outer separated. platesforming .a conduit, the outer plate being imperforate and the innerplate having distributing openings to the.0uter jacket.

10. In an engine, the combination of a cylinder block having a sideopening in its waterja'cket, and having a pump compart:

ment at one end, and a cover for said opening forming a conduit 'fromsaid compart- 11. In an engine, the combination. of a cylinder blockhaving a side opening'in its water jacket, andhaving a pump compartmentat one end, and acover for said opening froming a conduit for'receivingwater from said compartment and distributing it to-the jackets of thevarious cylinders;

12. Inan internal combustion engine, the combination with a cylinderblock with water jacket onside and top thereofyof block,,adistributing'conduit along one side of the block adaptedto receivecooling water from the pump, an outlet connection at the top of thewater jacket above the pump a radiator connected to said outlet and pumprespectively, and an inside by-pass through the water jacket from theoutlet connection to the intake side ofthe pump.

' 13. In an internal combustion engine, the

- combination of acylinder block having a waterjacket, a compartmentformed at one end of the block separately from the water jacket, adistributing conduit for the; jacket removably secured to the block,"anda pump arranged, in said compartment to deliver into said conduit. j

14. In an internal combustion engine, the combination of a cylinderblock having a water jacket formed with a side opening and having a pumpcompartment-formed at the end of the block separately-from the jacket,

sa-id compartment having a side outlet opening adjacent the sideopeningin the water jacket, a pump in said compartment and delivering tosaid outlet opening, and addetachable cover'extending over said waterjacket opening and said side outletjopening,

andforming a distributing conduit to receive water rom said outletopening and distribute it to the water acket of the cylinder jacket, apump in said compartment delivering tov said outlet opening,'adetachable cov'er extending over both said openings, and a perforatedplate within the cover extending over the water jacket opening, saidcover and said plate forminga distributing, conduit to receive waterfrom said outlet opening and distribute it to the water jacket.

16. In an internal combustion engine,'the

combination of'a cylinderblock having a water jacket formed with a. sideopening and having a pump compartment formed separatelyfrom the jacket,said compartment having an outlet opening-adj aoent and substantiallyinthe plane of the side opening in the water jacket, a pump in saidcompartment delivering to said outlet opening, and a distributingconduit to receive water from said outlet opening and distribute it tothe water jacket, said conduit comprising a perforatedinner plate overthe side open- "ing of the water jacket, and an imperforate cover platedetachably secured to the cylm der block and extending over the waterjacket opening and the pump outlet opening.

17. In an internal combustion engine, the

combination of a cylinderblock having a -.walter jacket formed with aside opening and having a pump compartment formed atithe end ofthe'block separately from the jacket, said compartment having a sideoutlet openingadjacent the side opening in the water jacket, a pump in.said compartment deliveringto said outlet opening, a' cover detachablysecured to the cylinder block extending over said outlet openingand saidwater jacket opening and forming a distributing conduit,- to receiveWater from said outlet opening and distribute it to the water jacket,

said pump being removable without disturbing said distributing conduit.

18. In an engine, the. combination ofa cylinder block having asideopening in its water jacket, and having a pump compare ment atone end, aremovable cover for said opening forming a conduit for receiving waterfrom said compartment and distributing it to the jackets of the variouscylinders, and a pump mounted in said compartment and adapted to beremoved without disturbing said cover.

. In testimony whereof ,I aflix' my signature. ALERED MOORHOUSE.

